Liostomia canaliculata Ortega & Gofas 2019, n. sp.
Liostomia canaliculata n. sp. (Fig. 25 J, K) urn:lsid:zoobank.org:act: 156041FB-BB06-4A69-B683-2E03FBEBF626 TYPE MATERIAL. — Holotype. sh., MNHN-IM-2000-34278, from SEAMOUNT 2 DW130. TYPE LOCALITY. — Off W Gran Canaria, 28°08.95’N, 15°53.11’W / 28°09.06’N, 15°52.92’W, 655- 660 m. ETYMOLOGY. — Latin...
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ftzenodo:oai:zenodo.org:3729488 2023-05-15T17:35:57+02:00 Liostomia canaliculata Ortega & Gofas 2019, n. sp. Ortega, José Rafael Gofas, Serge 2019-11-28 https://zenodo.org/record/3729488 https://doi.org/10.5281/zenodo.3729488 unknown info:eu-repo/semantics/altIdentifier/url/http://zoobank.org/156041FB-BB06-4A69-B683-2E03FBEBF626 info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03E687A0B279FFA69B7BFE29FCCAF949 info:eu-repo/semantics/altIdentifier/lsid/urn:lsid:zoobank.org:act:156041FB-BB06-4A69-B683-2E03FBEBF626 doi:10.5252/zoosystema2019v41a26 http://zenodo.org/record/3726028 http://publication.plazi.org/id/FFDFFFD8B258FF879A52FFD1FFCDFFBB doi:10.5281/zenodo.3726079 http://zoobank.org/urn:lsid:zoobank.org:pub:CF16A992-0401-44C8-BEEE-842CE7F1D27E doi:10.5281/zenodo.3729487 https://zenodo.org/communities/biosyslit https://zenodo.org/record/3729488 https://doi.org/10.5281/zenodo.3729488 oai:zenodo.org:3729488 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca, pp. 513-551 in Zoosystema 41(26) 544 Biodiversity Taxonomy Animalia Mollusca Gastropoda Pyramidellidae Liostomia Liostomia canaliculata info:eu-repo/semantics/other publication-taxonomictreatment 2019 ftzenodo https://doi.org/10.5281/zenodo.372948810.5252/zoosystema2019v41a2610.5281/zenodo.372607910.5281/zenodo.3729487 2023-03-10T16:53:13Z Liostomia canaliculata n. sp. (Fig. 25 J, K) urn:lsid:zoobank.org:act: 156041FB-BB06-4A69-B683-2E03FBEBF626 TYPE MATERIAL. — Holotype. sh., MNHN-IM-2000-34278, from SEAMOUNT 2 DW130. TYPE LOCALITY. — Off W Gran Canaria, 28°08.95’N, 15°53.11’W / 28°09.06’N, 15°52.92’W, 655- 660 m. ETYMOLOGY. — Latin adjective meaning “channelled”, alluding to the subsutural channel. DESCRIPTION Shell minute, globose with a low, markedly stepped spire, and the last whorl occupying more than 4⁄5 of the total height. Protoconch c. 280 µm in diameter, with its apex obliquely immersed in the first teleoconch whorl (type B of van Aartsen, 1987), smooth and glossy.Teleoconch of two whorls, shouldered with a very strong keel separated from the suture by a broad channel, smooth except for growth lines which are particularly conspicuous within the subsutural channel. Last whorl with maximum convexity near the periphery, flat between keel and periphery and only slightly convex in the abapical part. Umbilicus broad and conspicuous, delimited by a blunt keel. No columellar tooth. Dimensions of the holotype: 1.0 mm height × 0.95 mm diameter. REMARKS This species does not resemble any known gastropod from the North Atlantic, but is clearly identified as a member of the Pyramidellidae by the heterostrophic protoconch. Among all the pyramidellid genera reported in the area, Liostomia was considered because its type species, although quite different in aspect, is also umbilicate, has the protoconch nucleus similarly immersed, lacks a columellar tooth, and has an incipient subsutural keel on the first teleoconch whorl, admittedly not so conspicuous (HØisaeter 2014). Liostomia mamoi Mifsud, 1993 was described from the Mediterranean and has a height/diameter ratio close to that of L. canaliculata n. sp., although lacking the spiral keels. Published as part of Ortega, José Rafael & Gofas, Serge, 2019, The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca, pp. 513-551 in Zoosystema 41 (26) on page 544, ... Other/Unknown Material North Atlantic Zenodo Ortega ENVELOPE(-57.950,-57.950,-63.950,-63.950) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Pyramidellidae Liostomia Liostomia canaliculata |
spellingShingle |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Pyramidellidae Liostomia Liostomia canaliculata Ortega, José Rafael Gofas, Serge Liostomia canaliculata Ortega & Gofas 2019, n. sp. |
topic_facet |
Biodiversity Taxonomy Animalia Mollusca Gastropoda Pyramidellidae Liostomia Liostomia canaliculata |
description |
Liostomia canaliculata n. sp. (Fig. 25 J, K) urn:lsid:zoobank.org:act: 156041FB-BB06-4A69-B683-2E03FBEBF626 TYPE MATERIAL. — Holotype. sh., MNHN-IM-2000-34278, from SEAMOUNT 2 DW130. TYPE LOCALITY. — Off W Gran Canaria, 28°08.95’N, 15°53.11’W / 28°09.06’N, 15°52.92’W, 655- 660 m. ETYMOLOGY. — Latin adjective meaning “channelled”, alluding to the subsutural channel. DESCRIPTION Shell minute, globose with a low, markedly stepped spire, and the last whorl occupying more than 4⁄5 of the total height. Protoconch c. 280 µm in diameter, with its apex obliquely immersed in the first teleoconch whorl (type B of van Aartsen, 1987), smooth and glossy.Teleoconch of two whorls, shouldered with a very strong keel separated from the suture by a broad channel, smooth except for growth lines which are particularly conspicuous within the subsutural channel. Last whorl with maximum convexity near the periphery, flat between keel and periphery and only slightly convex in the abapical part. Umbilicus broad and conspicuous, delimited by a blunt keel. No columellar tooth. Dimensions of the holotype: 1.0 mm height × 0.95 mm diameter. REMARKS This species does not resemble any known gastropod from the North Atlantic, but is clearly identified as a member of the Pyramidellidae by the heterostrophic protoconch. Among all the pyramidellid genera reported in the area, Liostomia was considered because its type species, although quite different in aspect, is also umbilicate, has the protoconch nucleus similarly immersed, lacks a columellar tooth, and has an incipient subsutural keel on the first teleoconch whorl, admittedly not so conspicuous (HØisaeter 2014). Liostomia mamoi Mifsud, 1993 was described from the Mediterranean and has a height/diameter ratio close to that of L. canaliculata n. sp., although lacking the spiral keels. Published as part of Ortega, José Rafael & Gofas, Serge, 2019, The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca, pp. 513-551 in Zoosystema 41 (26) on page 544, ... |
format |
Other/Unknown Material |
author |
Ortega, José Rafael Gofas, Serge |
author_facet |
Ortega, José Rafael Gofas, Serge |
author_sort |
Ortega, José Rafael |
title |
Liostomia canaliculata Ortega & Gofas 2019, n. sp. |
title_short |
Liostomia canaliculata Ortega & Gofas 2019, n. sp. |
title_full |
Liostomia canaliculata Ortega & Gofas 2019, n. sp. |
title_fullStr |
Liostomia canaliculata Ortega & Gofas 2019, n. sp. |
title_full_unstemmed |
Liostomia canaliculata Ortega & Gofas 2019, n. sp. |
title_sort |
liostomia canaliculata ortega & gofas 2019, n. sp. |
publishDate |
2019 |
url |
https://zenodo.org/record/3729488 https://doi.org/10.5281/zenodo.3729488 |
long_lat |
ENVELOPE(-57.950,-57.950,-63.950,-63.950) |
geographic |
Ortega |
geographic_facet |
Ortega |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
The unknown bathyal of the Canaries: new species and new records of deep-sea Mollusca, pp. 513-551 in Zoosystema 41(26) 544 |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://zoobank.org/156041FB-BB06-4A69-B683-2E03FBEBF626 info:eu-repo/semantics/altIdentifier/url/http://treatment.plazi.org/id/03E687A0B279FFA69B7BFE29FCCAF949 info:eu-repo/semantics/altIdentifier/lsid/urn:lsid:zoobank.org:act:156041FB-BB06-4A69-B683-2E03FBEBF626 doi:10.5252/zoosystema2019v41a26 http://zenodo.org/record/3726028 http://publication.plazi.org/id/FFDFFFD8B258FF879A52FFD1FFCDFFBB doi:10.5281/zenodo.3726079 http://zoobank.org/urn:lsid:zoobank.org:pub:CF16A992-0401-44C8-BEEE-842CE7F1D27E doi:10.5281/zenodo.3729487 https://zenodo.org/communities/biosyslit https://zenodo.org/record/3729488 https://doi.org/10.5281/zenodo.3729488 oai:zenodo.org:3729488 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.372948810.5252/zoosystema2019v41a2610.5281/zenodo.372607910.5281/zenodo.3729487 |
_version_ |
1766135270029131776 |